[Amps] Hard-drive Dive

[Gary Schafer]

2 wrote:
> 
>>>>My guess is that things became progressively squirrelly as we added 160m 
>>>
> and
> 
>>>>WARC bands,
>>>
>>>**  adding new bands or adding 160m has no effect on a HF amp's vhf anode
>>>resonance and on its vhf gain.
>>
>>It sure had an effect on external "big bangs," band switch cooking, and choke 
> 
> fires.
> 
> **  a burned-band near the middle of a choke is usually from a vhf 
> parasite.
> 
> 
>>IMO, the average ham with little test equipment cannot tell if an event 
>>was VHF,HF,or DC related at first glance. Most of us treat symptoms rather 
> 
> than the 
> 
>>disease because we have no idea what the cause was
>>.
> 
> **  measuring the resistance of R-sup is a clue.  
> 
> cheers, Phil
> 
> -  R. L. Measures, a.k.a. Rich..., 805.386.3734, AG6K, 
> www.vcnet.com/measures.  
> end
> 

I have an amp with a pair of gg 813s with a burn in the middle of the choke.

73
Gary  K4FMX